Boiler for stills



July 17, 1928.

- E. V. OLIVER BOILER FOR STILLS Filed June 4, 1927 4 Sheets-Sheet 1Oliver I Qtkomqf July 17, 1928. 1,677,795

E. V. OLIVER BOILER FOR STILLS Filed June 4, 1927 4 Sheets-Sheet 2 31mm1 J01,

K. 17? Olivia"- I 6R0: um: I

July 17, 1928.

4 Sheets-Sheet 3 1/, Oliver July 17, 1928.

E. V. OLIVER BOILER FOR STILLS Filed June 1927 4 Sheets-:Sheet 4Patented July 17, 1928.

UNITED STATES BOILER non s'rILLs.

Application filed June 4, 1927'. Serial a... 196,558.

This invention relates to distilling" apparatus and more particularly toa boiler in which water may be converted into steam which is allowed topass out of the boiler and through a pipe to a suitable condenser.

One object of theinvention is to provide a boiler in which the heating.chamber is enclosed in a water jacket and the water fed from the waterjacket into tubes disposed within the heating chamber so that the watermaybe quickly heated to a high temperature and converted into steam. V

.Another object of the invention is to permit products'of combustion oran equivalent 16 heating medium to pass upwardly through the heatingchamber between and about the water tubes and also provide conduits :torthe heating medium which extend vertically through the tubes and therebycause the water tubes to' be quickly heated to a very high temperatureand maintained at this temperature so that'the water will be heated andconverted into steam in a very eificient manner.

Another object of the invention is to provide a boiler which will besimple in its constructionand consist of a comparatively few number ofparts.

Another object of the invention is to arrange the water tubes in bankswhich are disposed in the heating chamber and securely mounted incommunication with the water jacket.

Another object of the invention is to allow a portion of the heatingmedium to pass up wardly, through conduits disposed in the water acketabout the sides of the body and thereby allow the water in the waterjacket to be pre-heated before it enters the water tubes in the heatingchamber.

' Another'object of the invention is to cause steam which accumulates inthe upper portion of the water jacket to be kept hot and therebyprevented from condensing in the water jacket.

The invention is illustrated in the accompanying drawings, wherein W YFigure 1 is a vertical sectional view through the improved boiler;

Fig. '2 is a transverse sectional view through the boiler taken in theline 2- of Fig. 1; i

Fig. 3 is a vertical sectionalvview showing a slightly modified form ofboiler, and

modi fied form of boiler.

Fi 4 is a similar .view showing another The improved boiler which isintended to form part of a still includes a body por tion 1 which isformed of metal and has a tapered top or upper portion 2 from whichextends an outlet neck 8. The body defines a heating chamber which isopen at its bottom, as clearly shown in Fig. '1, so that it may beplaced over a fire and products ofeombustion or heated air'constitutingaheating medium passed upwardly through the body and out through the neck3 which may constitute a smoke pipe if so desired and have suitableconnection with a chimney or the like. It will, of course, be obviousthat,

if desired, the boiler may be set'in place upon an ordinary cookingstove of the coal or gas type. A bafile 4 is mounted in the upperportion of the body and maybe adjustable toward and away from the lowerend of the neck 3 so that the warm air 'or products of combustion in theupper portion of the chamber may be directed toward the walls thereofand prevented from passing into the outlet neck too rapidly.

A water jacket 5 is disposed about the body 1 in spaced relationthereto, as shown in Fi 2, and has its lower end closed by an inwar lyextending flange or bottom 6 and its upper portion 7 tapered andterminating in a head or dome Swhich is disposed about the outlet neckor pipe 3 and formed with a side opening in which is fitted a pipe 9 toconduct the steam to a suitable condenser. From an inspection ofFig. 4,it will be seen that, if desired, pipes 10 may be disposed vertically inthe water jacket at opposite.

sides of the body with their upper and lower end portions bent to extendtoward the body. These end portions 11 of the pipes 10 are fitted intoopenings formed'in the side walls of the body, and it will be readilyseen that the heating'medium by passing through the pipes 10 may heat:the water in the water jacket before it passes out of the water jacket.A water inlet pipe 12 which may lead from any suitable source of supplyis connected with the water jacket as shown in-Fig. 1 and provided witha control valve '13 and a water glass 14 is connected with the waterjacket in the usual manner so thatthe' amount of water'in the boiler maybe determined by looking at the water glass and additional water fedinto the water jacket when necessary by opening the valve in the supplypipe.

A series of'water heating units is disposed.

in the chamber defined by the body 1 and each includes an upper tube '15and a lower tube 16. These tubes extend transversely in the chamber withtheiropenend portions passed through openings in side walls of the bodyand communicating with the water and up into the tubes 17 until itreaches and enters the upper tubes 15. The normal water levelisindicated by a dotted line in Fig. 1' and is preferablybelow the upperwalls of the upper tubes as shown so thatsteam may pass from these tubesinto the water jacket and accumulate in the tapered upper portionthereof about the tapered top of the body and about the outlet pipe 3..By this arrangement the hot outlet pipe and up per portion of the bodywill retain the steam at a high temperature and prevent it fromcondensing in the upper portion of the water jacket before it has anopportunity to pass out through. the pipe 9 to the condenser. If .sodesired, additional transverse pipes 18 maybe disposed in the chamberbetween the upper and lower pipes, as shown in Fig. 3. It should also benoted that the upper and lower pipes may .be staggered, as shown in Fig.4, so that the heating units may be placed somewhat closer together thanshown in Fig. .2 and thereby allow a greater number to be accommodatedin the heating chamber while at the same. time leaving sulficient spacebetween them for the heating medium to pass upwardly through thechamber.

Conductor tubes 19 for the heating medium extend longitudinally throughthe vertical ly disposed pipes-17 and have open upper and lower endswhich pass through openings formed in the upper and lower wallsrespectively of the upper and lower tubes 15 and 16 and communicate withthe upper and lowe-r end portions of the heating chamber. Therefore, theheating medium in addition to passing upwardly about and between theheating units may also pass upwardly through the tubes 19 and constituteinternal :means for applying heat to water in the heating units. 'Bythis arrangement the water in the water tubes will very quickly reachthe boiling point when the boiler is in use and the water caused to boilat such a ratethat it will be very quickly converted into steam. Aspreviously explained, this steam passes outwardly through the ends ofthe upper tubes into the water jacket and upwardly through the waterjacket into the dome 8 from which it passes through the pipe 9 .to .asuitable condenser. When necessary, one or more of .the heating unitsmay be removed :so that fit :can'iberepaired or replaced with a new one.

said chamber.

Having thus described the invention, I claim:

1. A still comprising a hollow body defining a heating. chamber andhaving its upper end provided with an outlet, a water jacket disposedabout said body and having its upper portion provided with a steam'outlet, upper and'lower water tubes ex tending transversely through,said body and. having open, ends secured in openings formed in the wallsof the body anticommunicating with said water jacket, water tubesextending yvertically between and communicating with said upper andlower tubes,

and, open-ended conduits for a heating medium/extending longitudinallythrough the vertical water tubes with their end portions extendingtransversely through the upper and lower watertubes and communieatingwith the upper and lower portions of said chamber. j

'2. A still comprising ahollow body defining heating chamber andhav'ingits upper end. provided with an outlet, a' water jacket disposed aboutsaid body and having its upper portion providedwith a steam outlet,upper and] lower waterjtubes ex tending transversely through said body.and communicating with said 'water jacket,

water tubes extending vertically between and -commumcating with said.upper and lower tubes, open ended conduits for a heating mediumextending longitudinally end portions extending transversely through theupper and lower water tubes and comfining a heating chamber and havingan" outlet neck leading from its upper end, a

through the vertical water-tubes with their municating with the upperand "lower porwater jacket enclosing the sides and top of 1 said bodyvand a portion of said 'neckan'd provided with a steam outlet'adjacentfits upper end, upper and lower water conduits disposedhorizontally "in said chamber and spaced transversel from each other'and having open encs secured openings formed in the walls of theheating chamber and communicating withsaid water jacket,

vertical water conduits connectingit'he upper and lower horizontalconduits, and conduits for a heating medium extending longitudinally inthe vertical conduits with their end portions passed through the upperand" lower "horizontal conduits and communicating with the upperandlower portions of walls and a taperedjtop terminating in-an outletneck, a water jacket disposed about said body and having a tapered topenclosing a portion of the neck ofthe body and terminating in a neckdisposed about the neck of said bodyvclosed at its upper end andprovided With a steam outlet leading from one side adjacent its closedupper end, water conduits extending through said heating chamber andcommunicating with said water jacket, and conduits for a heating 10medium extending through said Water conduits and communicating with theupper and lower portions of said heating chamber. In testimony whereof Iaflix my signature.

ERNON V. OLIVER. a 5.

